Francais | English | Espanõl

Cytotrophoblast

From Wikipedia, the free encyclopedia

Jump to: navigation, search

The introduction to this article provides insufficient context for those unfamiliar with the subject matter.
Please help Wikipedia by improving the introduction according to the guidelines laid out at Wikipedia:Guide to layout. You can discuss the issue on the talk page.

Cytotrophoblast
Primary chorionic villi. Diagrammatic.
Secondary chorionic villi. Diagrammatic.
Gray's subject #6 47
MeSH A16.254.085.162

The cytotrophoblast (or layer of Langhans) is the inner layer of the trophoblast, interior to the syncytiotrophoblast.

Cytotrophoblasts are stem cells in the chorionic villous. During differentiation, mononuclear cytotrophoblast fuse together into the multinucleated syncytiotrophoblasts.

[edit] Invading cytotrophoblasts

These cells invade maternal uterine tissues and thus are in direct contact with maternal stroma and immune cells.

[edit] Additional images

Section through embryonic area of Vespertilio murinus to show the formation of the amniotic cavity.

[edit] External links

 This anatomy article is a stub. You can help Wikipedia by expanding it.
Mammalian development of embryo and development and fetus (some dates are approximate - see Carnegie stages) - edit - discuss

Week 1: Zygote | Morula | Blastula/Blastomere/Blastosphere | Archenteron/Primitive streak | Blastopore | Allantois | Trophoblast (Cytotrophoblast | Syncytiotrophoblast | Gestational sac)

Week 2: Yolk sac | Vitelline duct | Bilaminar disc

Week 3: Hensen's node | Gastrula/Gastrulation | Trilaminar embryo Branchial arch (1st) | Branchial pouch | Meckel's cartilage | Somite/Somitomere | Germ layer (Ectoderm, Endoderm, Mesoderm, Chordamesoderm, Paraxial mesoderm, Intermediate mesoderm, Lateral plate mesoderm)

Histogenesis and Organogenesis

Circulatory system: Primitive atrium | Primitive ventricle | Bulbus cordis | Truncus arteriosus | Ostium primum | Foramen ovale | Ductus venosus | Ductus arteriosus | Aortic arches | Septum primum | Septum secundum | Cardinal veins

Nervous system: Neural development/Neurulation | Neurula | Neural folds | Neural groove | Neural tube | Neural crest | Neuromere (Rhombomere) | Notochord | Optic vesicles | Optic stalk | Optic cup

Digestive system: Foregut | Midgut | Hindgut | Proctodeum | Rathke's pouch | Septum transversum

Urinary/Reproductive system: Urogenital folds | Urethral groove | Urogenital sinus | Kidney development (Pronephros | Mesonephros | Ureteric bud | Metanephric blastema) | Fetal genital development (Wolffian duct | Müllerian duct | Gubernaculum | Labioscrotal folds)

Glands: Thyroglossal duct

Uterine support: Placenta | Umbilical cord (Umbilical artery, Umbilical vein, Wharton's jelly) | Amniotic sac (Amnion, Chorion)

Limb development: Limb bud | Apical Ectodermal Ridge/AER

Retrieved from "http://en.wikivisual.com/index.php/Cytotrophoblast"
Personal tools